Description

The left picture illustrates the electric capacity created by human body and surrounding.

The electric capacity created by contact of human body is very small figure (pF) and it is an important technology to perceive precisely very small change of capacitance.

The sensing process of frequency change has been developed to perceive the minute electric capacity changed by human body precisely and quantitatively.

Without contact of human body, T0, the cycle of frequency is changed to T0+T by influence of Cbody added by human body. And it is possible to perceive even very small change with this process.

Features of Capacitive Sensor(Switch)

- Realization of beautiful high-class design- Good use of space by slim structure- Semi-permanent lifetime and high reliability - Reasonable, simple and convenient manufacturing process - Outstanding application for all kinds of switches

Performance comparison between the General Switch and the Capacitive Sensor

Comparison Basis

Existing TACT S/W

Capacitive Sensor

Stability

- Can happen malfunction by humidity and accident in case water is gone in switch

- Has danger of static electricity from direct contact of human body and of electric shock in case of internal short circuit in switch

Has no danger of electric shock by humidity, moisture, static electricity, etc. due to touch of object insulated electrically

Durability

Happens frequently machinery problem because hard-face of switch is gradually weaken and has weakness to shock

Has outstanding hard-face because this is operated by semiconductor, not by machine or mechanical handling

Pollution Control

Has possibility of malfunction by pollutant like oil, dust, etc. in knob of switch

Has no possibility of pollution because this has no knob or hole in switch and easy to clean

Convenience of Production

Need mold or punching work outside product and process to fix switch

Reduced drastically process cost because process to fix switch in frame is not necessary

Realization of Design

Has limitation of design because knob of switch is exposed outside

Has beautiful high-class design by good finish of contact surface only due to internal switch

Convenience

Must push switch precisely

Convenient to regulate by tickling

Accuracy/Sensitivity

Difficult to work precisely by diverse factor as oil, abrasion, etc.

Has outstanding and permanent accuracy due to perceive with semiconductor

Application

Has diverse limitation factor

Can apply to various fields

Stability

Durability

Pollution Control

Convenience of Production

Realization of Design

Convenience

Accuracy

Application

Capacitive Sensor

O

O

O

O

O

O

O

O

TACT Switch

X

X

X

O

X

X

X

O

Specification of Capacitive Sensor

Role

The signal of contact is sent to circuit section the minute that the sensor recognizes for exchange value of electric capacity when human body or object with electric capacity is contacted.

Feature

After power is turned on, capacitive sensor does send high signal in ordinary status and send low signal in contact status.

Input volt is 5 volts and consumed about 400μA only

Can be utilized with microcomputer without additional circuit with a built-in 5KΩ Pull-up Resistance

Specification

Operation volt: 5 Volts

Consumption of Electric current: 400μA (Max.: 500μA)

Output of Impedance: High 10 KΩ, Low 10 Ω

Sensitivity: Various greatly in 5V VDD (Max 6mm)

Application

Enable to apply to sensor for human body or object including general switch

Flow meter, Key Pad and Sensor switch of human body

Diversity of application plan

< Used independently in circumstance of 5volt support >

- Possible to utilize connecting with microcomputer without additional circuit in case of key pad of appliances like audio- Acting as independent ON/OFF switch when serving as Power On/Off

< Used together with electronic AC switch>Serving as a control switch of AC like Touch Lite

Product Image

Welcome and thank you for visiting our company homepage. There is certain reason why our company is beloved by the customers. Our company is committed to do our best to fulfill the responsibilities and obligations to the community as we grow.

The love that customers and community shown to us will be returned to bright and comfortable light, and contribute to the development of Korean lighting industry, and in particular, we will do the best we can to develop the overseas market and design, stability and efficiency. In addition, we are committed to be the company with a great motivation to shed the light to the world and substantiate the company rather than flatten the numbers.